[Crossover] Sir Sorcerer

The first time Roderick Ambrosius Riken saw Albus Percival Wulfric Brian Dumbledore, he thought it was a funny coincidence: he looked just like his beloved, Mordred Pendragon.

The first time Roderick Ambrosius Riken saw Gellert Grindelwald, he thought it was a funny coincidence: he looked just like me.

When Roderick Ambrosius Riken saw that the person Albus Percival Wulfric Brian Dumbledore saw in the Mirror of Erised was Gellert Grindelwald, he thought: Even if it kills me, I'll make sure those two end up together.

Crossover fic -> Master Wizard